20804726900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{881}}^1\times {\mathrm{2207}}^1$

素因数の和:3209

約数の個数: 72

約数和(自身を含む): 45640578816

約数和(自身を除く): 24835851916

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 881, 1070, 1762, 2140, 2207, 2675, 3524, 4405, 4414, 5350, 8810, 8828, 10700, 11035, 17620, 22025, 22070, 44050, 44140, 55175, 88100, 94267, 110350, 188534, 220700, 236149, 377068, 471335, 472298, 942670, 944596, 1180745, 1885340, 1944367, 2356675, 2361490, 3888734, 4713350, 4722980, 5903725, 7777468, 9426700, 9721835, 11807450, 19443670, 23614900, 38887340, 48609175, 97218350, 194436700, 208047269, 416094538, 832189076, 1040236345, 2080472690, 4160945380, 5201181725, 10402363450, 20804726900]

約数ペア:

[(1, 20804726900), (2, 10402363450), (4, 5201181725), (5, 4160945380), (10, 2080472690), (20, 1040236345), (25, 832189076), (50, 416094538), (100, 208047269), (107, 194436700), (214, 97218350), (428, 48609175), (535, 38887340), (881, 23614900), (1070, 19443670), (1762, 11807450), (2140, 9721835), (2207, 9426700), (2675, 7777468), (3524, 5903725), (4405, 4722980), (4414, 4713350), (5350, 3888734), (8810, 2361490), (8828, 2356675), (10700, 1944367), (11035, 1885340), (17620, 1180745), (22025, 944596), (22070, 942670), (44050, 472298), (44140, 471335), (55175, 377068), (88100, 236149), (94267, 220700), (110350, 188534)]